ReturnResult«多空持仓比例-折线图»(ReturnResult«多空持仓比例-折线图»)

{
    "code": "string",
    "date": {
        "bkRatioList": [
            {
                "bkInst": "string",
                "bkName": "string",
                "contractRateList": [
                    {
                        "contract": "string",
                        "contractName": "string",
                        "longRate": 0,
                        "shortRate": 0
                    }
                ],
                "ratioList": [
                    0
                ]
            }
        ],
        "dateList": [
            {}
        ]
    },
    "msg": "string"
}